This needle is extra sharp, has an extra large eye and a large slot to accommodate stitch thread. Five needles per card. The discriminating sewer choice worldwide, only Schmetz provides the consistent, consistent quality that produces the perfect stitch every time. These needles were developed specifically for stitching, heavy, multiple or poor quality threads. Achieves perfectly straight stitch lines and even stitches when using a straight stitch plate. Extra sharp with an extra large eye and a large slot to accommodate stitch thread. This needle was designed for use in multi-purpose electronic sergers that do overlock, cover, safety and drill stitches. Not suitable for use on normal home sewing machines or embroidery machines.